CVE-2023-3909 Information

Description

An issue has been discovered in GitLab CE/EE affecting all versions starting from 12.3 before 16.3.6 all versions starting from 16.4 before 16.4.2 all versions starting from 16.5 before 16.5.1. A Regular Expression Denial of Service was possible by adding a large string in timeout input in gitlab-ci.yml file.

Reference

https://hackerone.com/reports/2050269 https://gitlab.com/gitlab-org/gitlab/-/issues/418763